class Response:


    def __init__(self, player=None, position=None, code=''):
	self.code=code;
	self.player = player
	self.position = position

    def __str__(self):
        ret = ''
        if(self.player!=None):
            ret += self.player + ' '
        if(self.position!=None):
            ret += self.position + ' '
        if(self.code!=None):
            ret += self.code

        return ret

